CAJ | 학술논문

　　针对大庆长垣油田高含水后期井－震结合储层描述的目标尺度小、精度要求高、井网密等特点，以松辽盆地杏树岗油田X56区块为研究区，在精细地质研究成果的基础上，充分利用三维地震资料，形成了一套大庆长垣油田井－震结合构造解释、断层识别、储层预测配套技术。通过容量维分形技术，识别了断距5m左右的小断层，解决了井间小断层识别难题；利用井－震结合构造解释成果，搞清了断层的平面组合特征及延伸范围，落实了微幅度构造及其与油气分布关系；采用地震随机反演技术，对葡一组储层砂体厚度进行了平面预测和井间砂体连通性分析，2 m以上砂体预测符合率达到75％以上。在此基础上，进一步修正了仅用井孔资料绘制的沉积微相图，精细刻画了河道砂体的平面展布特征。井－震结合三维地震技术在长垣油田多个区块应用，效果明显。
　　침대대경장원유전고함수후기정－진결합저층묘술적목표척도소、정도요구고、정망밀등특점，이송료분지행수강유전X56구괴위연구구，재정세지질연구성과적기출상，충분이용삼유지진자료，형성료일투대경장원유전정－진결합구조해석、단층식별、저층예측배투기술。통과용량유분형기술，식별료단거5m좌우적소단층，해결료정간소단층식별난제；이용정－진결합구조해석성과，고청료단층적평면조합특정급연신범위，락실료미폭도구조급기여유기분포관계；채용지진수궤반연기술，대포일조저층사체후도진행료평면예측화정간사체련통성분석，2 m이상사체예측부합솔체도75％이상。재차기출상，진일보수정료부용정공자료회제적침적미상도，정세각화료하도사체적평면전포특정。정－진결합삼유지진기술재장원유전다개구괴응용，효과명현。
Well-seismic integrated reservoir characterization of Daqing Changyuan oilfield at late high water cut develop -ment stage faces the challenges of small scale of description target ,high requirement for predication accuracy and dense well pattern.Taking Block X56 of Xingshugang oilfield in the Songliao Basin as an example ,we developed a set of tech-nologies consisting of well-seismic integrated structure interpretation ,fault identification and reservoir prediction by utili-zing 3D seismic data and fine geologic study results .The capacity-dimension fractal technology is applied to recognize small faults with throw of about 5 m,solving problems of small faults identification between wells .The plane combination characteristics and extensions of faults are defined and the relationship between low amplitude structure and oil -gas distri-bution is determined by using well-seismic integrated structure interpretation technology .Reservoir sandbody thickness in the 1st member of Putaohua Formation is mapped and the sandbody connectivity between wells is analyzed with the sto -chastic inversion technology .The coincidence rate of prediction of sandbodies with thicknes above 2 meters is more than 75%.On this basis ,sedimentary microfacies map drawn only by borehole data is further revised ,and the planar distribu-tion features of channel sandbody are characterized .The well-seismic integrated 3 D seismic interpretation technology has been applied in several blocks of Changyuan oilfield and the results are satisfactory .